ES413864A1 - Record contact spindle - Google Patents
Record contact spindleInfo
- Publication number
- ES413864A1 ES413864A1 ES413864A ES413864A ES413864A1 ES 413864 A1 ES413864 A1 ES 413864A1 ES 413864 A ES413864 A ES 413864A ES 413864 A ES413864 A ES 413864A ES 413864 A1 ES413864 A1 ES 413864A1
- Authority
- ES
- Spain
- Prior art keywords
- record
- spindle
- stylus
- disc
- flipper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/02—Details
- G11B17/022—Positioning or locking of single discs
- G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
- G11B17/0282—Positioning or locking of single discs of discs rotating during transducing operation by means provided on the turntable
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
- G11B9/06—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using record carriers having variable electrical capacitance; Record carriers therefor
Landscapes
- Elimination Of Static Electricity (AREA)
- Rotational Drive Of Disk (AREA)
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
One type of video disc record reproducing system senses the capacitance between a stylus and the disc record to reconstruct the video information. The stylus includes a thin conductive element electrode and rides on the record, which is rotated at high speeds. The record, which includes a conductive layer covered with a thin dielectric material, is susceptible to accumulating an electric charge. Disposing a pickup device such as a stylus in proximate or contacting relation with such a charged record disc can produce a destructive discharge of the record through the pickup device which results in damage to the stylus. To minimize the occurence of such damage, the disc record is contacted by means which provide a conductive path through the record spindle to a point of reference potential for the system. In one arrangement, the spindle has a slide bar spring biased to be within the periphery of the spindle when the spindle is stationary. Upon rotation of the spindle, the bar extends out of the spindle to contact the record surface. In a further arrangement, a grounding flipper is pivotally mounted in the spindle. The flipper passes through the record hole and is spring biased to bear against the record surface.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1804472A GB1430593A (en) | 1972-04-19 | 1972-04-19 | Record contact spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES413864A1 true ES413864A1 (en) | 1976-01-16 |
Family
ID=10105683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES413864A Expired ES413864A1 (en) | 1972-04-19 | 1973-04-18 | Record contact spindle |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US3871663A (en) |
| JP (2) | JPS5341966B2 (en) |
| AR (1) | AR197037A1 (en) |
| AT (1) | AT339970B (en) |
| BR (1) | BR7302886D0 (en) |
| CA (1) | CA977284A (en) |
| DE (1) | DE2319503A1 (en) |
| DK (1) | DK135069B (en) |
| ES (1) | ES413864A1 (en) |
| FR (1) | FR2181038B1 (en) |
| GB (1) | GB1430593A (en) |
| IT (1) | IT980301B (en) |
| NL (1) | NL7305468A (en) |
| SE (2) | SE387762B (en) |
| SU (1) | SU559667A3 (en) |
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE7602806L (en) * | 1975-03-10 | 1976-09-13 | Rca Corp | SUPERIOR SIGNAL PICKUP DRIVER AND EARTH DISC DEVICE |
| US4040634A (en) * | 1975-03-10 | 1977-08-09 | Rca Corporation | Overhead disc record grounding apparatus |
| JPS5167102A (en) * | 1975-03-17 | 1976-06-10 | Matsushita Electric Ind Co Ltd | |
| US3970317A (en) * | 1975-04-29 | 1976-07-20 | Rca Corporation | Apparatus for inhibiting a plurality of disc records from being disposed on a turntable and grounding a disc record disposed on the turntable |
| NL171405C (en) * | 1975-09-29 | 1983-03-16 | Philips Nv | SWING MIRROR. |
| NL7609375A (en) * | 1976-08-24 | 1978-02-28 | Philips Nv | CLAMPING DEVICE FOR A ROTATING DRIVE INFORMATION-BEARING PLATE. |
| JPS53125816A (en) * | 1977-04-09 | 1978-11-02 | Victor Co Of Japan Ltd | Recording system for information recorded medium disc |
| JPS5752793Y2 (en) * | 1977-04-20 | 1982-11-16 | ||
| JPS5573968A (en) * | 1978-11-29 | 1980-06-04 | Watanabe Kenkyusho:Kk | Simple record player |
| GB2042240B (en) * | 1979-02-09 | 1983-02-09 | Thurston B D | Device for securing a record to a turntable |
| JPS5938655B2 (en) * | 1979-05-14 | 1984-09-18 | 日本放送協会 | semiconductor disk memory device |
| JPS56137560A (en) * | 1980-03-31 | 1981-10-27 | Victor Co Of Japan Ltd | Clamp device for disc shape information recording medium in disc shape information recording medium playback device |
| JPS624933Y2 (en) * | 1980-08-14 | 1987-02-04 | ||
| US4432086A (en) * | 1982-05-03 | 1984-02-14 | Rca Corporation | Turntable apparatus for video disc player |
| US4489740A (en) * | 1982-12-27 | 1984-12-25 | General Signal Corporation | Disc cleaning machine |
| US4562570A (en) * | 1983-11-28 | 1985-12-31 | North American Philips Consumer Electronics Corp. | Video disc turntable having clamping device |
| JPS60109075U (en) * | 1983-12-27 | 1985-07-24 | 株式会社精工舎 | clock hand turning device |
| JPS6232349Y2 (en) * | 1986-06-12 | 1987-08-19 | ||
| JPS6316438A (en) * | 1986-07-08 | 1988-01-23 | Nec Corp | Optical disk medium |
| JPS63175240A (en) * | 1987-01-13 | 1988-07-19 | Canon Inc | Optical recording carrier and its optical recording and reproducing method |
| JPH01121891U (en) * | 1988-02-10 | 1989-08-18 | ||
| US5252045A (en) * | 1990-05-11 | 1993-10-12 | Toyo Engineering Corporation | Dual piston reciprocating vacuum pump |
| EP0747897A3 (en) * | 1995-06-06 | 1997-08-06 | Iomega Corp | Disk cartridge hub locking mechanism |
| GB9604048D0 (en) * | 1996-02-26 | 1996-04-24 | Grossman Stanley I | Labelling device and label |
| US6198716B1 (en) * | 1996-12-03 | 2001-03-06 | Sanyo Electric Co., Ltd. | Disk player including a disk chucking mechanism and plate separator device |
| US5958177A (en) * | 1997-09-16 | 1999-09-28 | Claussnitzer; Werner | Labelling device |
| JPH11296942A (en) * | 1998-04-09 | 1999-10-29 | Sony Corp | Disk chucking device |
| JP2002313000A (en) * | 2001-03-28 | 2002-10-25 | Internatl Business Mach Corp <Ibm> | Spindle clamp |
| JP4608372B2 (en) * | 2005-06-09 | 2011-01-12 | パイオニア株式会社 | Holding device and disk device |
| US20240038259A1 (en) * | 2022-07-28 | 2024-02-01 | Koolance, Inc. | Retention structures and systems for record or vinyl playback devices or systems |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7112008U (en) * | 1971-09-09 | Breh K | Device for dismantling or to prevent the occurrence of electrostatic charges from records | |
| US1843140A (en) * | 1930-03-10 | 1932-02-02 | Mills Novelty Co | Clamping device for phonograph records and the like |
| US2744212A (en) * | 1954-06-04 | 1956-05-01 | Baum David | Phonograph attachment for eliminating static electricity from records |
| US3081383A (en) * | 1959-10-30 | 1963-03-12 | Panayotis C Dimitracopoulos | Method and means for variable resistance recording |
| DE6603581U (en) * | 1968-08-21 | 1969-12-04 | Ver Stahlwollefabriken Bullmer | RECORD AND METHOD OF MANUFACTURING IT |
| US3585446A (en) * | 1969-02-19 | 1971-06-15 | Eastman Kodak Co | Means for prevention of static electric discharge on motion picture projector reels |
| FR2073651A5 (en) * | 1969-12-23 | 1971-10-01 | Licentia Gmbh |
-
1972
- 1972-04-19 GB GB1804472A patent/GB1430593A/en not_active Expired
-
1973
- 1973-03-12 US US340545A patent/US3871663A/en not_active Expired - Lifetime
- 1973-04-02 CA CA167,673A patent/CA977284A/en not_active Expired
- 1973-04-17 DE DE2319503A patent/DE2319503A1/en not_active Withdrawn
- 1973-04-17 JP JP4356373A patent/JPS5341966B2/ja not_active Expired
- 1973-04-18 SE SE7305526A patent/SE387762B/en unknown
- 1973-04-18 AR AR247637A patent/AR197037A1/en active
- 1973-04-18 DK DK219873AA patent/DK135069B/en not_active IP Right Cessation
- 1973-04-18 BR BR2886/73A patent/BR7302886D0/en unknown
- 1973-04-18 ES ES413864A patent/ES413864A1/en not_active Expired
- 1973-04-18 SU SU1911774A patent/SU559667A3/en active
- 1973-04-18 NL NL7305468A patent/NL7305468A/xx unknown
- 1973-04-19 FR FR7314452A patent/FR2181038B1/fr not_active Expired
- 1973-04-19 IT IT7349573A patent/IT980301B/en active
- 1973-04-19 AT AT350373A patent/AT339970B/en not_active IP Right Cessation
-
1976
- 1976-02-26 SE SE7602538A patent/SE407866B/en unknown
- 1976-11-05 JP JP51133675A patent/JPS5248453A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DK135069B (en) | 1977-02-28 |
| ATA350373A (en) | 1977-03-15 |
| AR197037A1 (en) | 1974-03-08 |
| SU559667A3 (en) | 1977-05-25 |
| JPS541166B2 (en) | 1979-01-22 |
| JPS5248453A (en) | 1977-04-18 |
| AT339970B (en) | 1977-11-25 |
| JPS4918316A (en) | 1974-02-18 |
| CA977284A (en) | 1975-11-04 |
| IT980301B (en) | 1974-09-30 |
| GB1430593A (en) | 1976-03-31 |
| SE387762B (en) | 1976-09-13 |
| AU5464273A (en) | 1974-10-24 |
| DE2319503A1 (en) | 1973-10-31 |
| SE407866B (en) | 1979-04-23 |
| DK135069C (en) | 1977-07-25 |
| FR2181038B1 (en) | 1976-11-12 |
| FR2181038A1 (en) | 1973-11-30 |
| NL7305468A (en) | 1973-10-23 |
| JPS5341966B2 (en) | 1978-11-08 |
| US3871663A (en) | 1975-03-18 |
| BR7302886D0 (en) | 1974-01-08 |
| SE7602538L (en) | 1976-02-26 |
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